EP0126405B1 - Pyrazolonazofarbstoffe - Google Patents
Pyrazolonazofarbstoffe Download PDFInfo
- Publication number
- EP0126405B1 EP0126405B1 EP84105471A EP84105471A EP0126405B1 EP 0126405 B1 EP0126405 B1 EP 0126405B1 EP 84105471 A EP84105471 A EP 84105471A EP 84105471 A EP84105471 A EP 84105471A EP 0126405 B1 EP0126405 B1 EP 0126405B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- parts
- azo dyestuffs
- pyrazolone azo
- mixture
- formula
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000049 pigment Substances 0.000 claims description 5
- 238000004040 coloring Methods 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 239000004793 Polystyrene Substances 0.000 description 5
- 229920002223 polystyrene Polymers 0.000 description 5
- -1 polyethylene Polymers 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- LUZXGSRCYGQGQF-UHFFFAOYSA-N 2,5-dichloro-4-(5-methyl-3-oxo-1h-pyrazol-2-yl)benzenesulfonic acid Chemical compound N1C(C)=CC(=O)N1C1=CC(Cl)=C(S(O)(=O)=O)C=C1Cl LUZXGSRCYGQGQF-UHFFFAOYSA-N 0.000 description 1
- VRLPHBSFRWMMPW-UHFFFAOYSA-N 2-amino-4-chloro-5-methylbenzenesulfonic acid Chemical compound CC1=CC(S(O)(=O)=O)=C(N)C=C1Cl VRLPHBSFRWMMPW-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 239000004908 Emulsion polymer Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000012954 diazonium Substances 0.000 description 1
- 150000001989 diazonium salts Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- JEXVQSWXXUJEMA-UHFFFAOYSA-N pyrazol-3-one Chemical class O=C1C=CN=N1 JEXVQSWXXUJEMA-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/34—Monoazo dyes prepared by diazotising and coupling from other coupling components
- C09B29/36—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds
- C09B29/3604—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom
- C09B29/3647—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms
- C09B29/3652—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles
- C09B29/366—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles containing hydroxy-1,2-diazoles, e.g. pyrazolone
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3442—Heterocyclic compounds having nitrogen in the ring having two nitrogen atoms in the ring
- C08K5/3445—Five-membered rings
Definitions
- the invention relates to the pyrazolone azo pigment of the formula
- the compound of the formula is a valuable pigment for coloring plastics.
- Polyolefins such as polyethylene and polypropylene, as well as polystyrene, polycarbonate and ABS are particularly suitable. Worthy of mention are the excellent temperature stability and plasticizing properties as well as the very good light and weather resistance.
- the pigment is also suitable for coloring paints.
- the amine of the formula can be prepared by methods known per se diazotize and couple with the pyrazolone derivative.
- the coupling product can then be converted into the Ca salt. Details of the production can be found in the example. Unless otherwise noted, details of parts and percentages are based on weight.
- the compound according to the invention must be in anhydrous form in order to be useful for the intended purposes.
- products containing water of crystallization are often obtained which do not lose the water even when drying under normal conditions.
- a compound is obtained which is different from the crystal water-containing e.g. in the coloring of thermoplastics, characterized by a greatly increased temperature stability and better light and weather fastness.
- 0.05 part of the dye obtained according to the example is dry-mixed in a drum mixer with 100 parts of polyethylene powder (high-pressure product).
- the mixture is melted and homogenized on a screw press at a cylinder temperature of 160 to 200 ° C.
- the colored plastic mass is granulated by hot knocking off the nozzle head or by pulling threads with cooling.
- the granules obtained in this way are then injected into shaped bodies in an injection molding apparatus at 200 ° C. or pressed to any desired bodies on presses. Yellow compacts with excellent light fastness are obtained.
- 0.05 part of the dye obtained according to the example is dry-mixed in a drum mixer with 100 parts of ground polystyrene block polymer.
- the mixture is melted and homogenized on a screw press at a cylinder temperature of 200 to 250 ° C.
- the colored plastic mass is granulated by hot knocking off the nozzle head or by pulling threads with cooling.
- the granules obtained in this way are then injected into moldings in an injection molding apparatus at 200 to 250 ° C. or pressed onto any desired bodies on presses. Yellow molded parts with excellent thermal stability are obtained.
- polystyrene block polymer a polystyrene emulsion polymer or suspension polymer or mixed polymer with butadiene and acrylonitrile or acrylic esters can also be used.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Cosmetics (AREA)
- Developing Agents For Electrophotography (AREA)
Description
-
- Die Verbindung der Formel ist ein wertvolles Pigment zur Einfärbung von Kunststoffen. Es kommen vor allem Polyolefine, wie Polyethylen und Polypropylen, sowie Polystyrol, Polycarbonat und ABS in Betracht. Hervorzuheben sind die hervorragenden Temperaturstabilitäten und Weichmacherechtheiten sowie die sehr gute Licht- und Wetterbeständigkeit. Das Pigment eignet sich auch zum Färben von Lacken.
-
- Anschliessend kann das Kupplungsprodukt in das Ca-Salz überführt werden. Einzelheiten der Herstellung können dem Beispiel entnommen werden. Angaben über Teile und Prozente beziehen sich dabei, sofern nicht anders vermerkt, auf das Gewicht.
- Die erfindungsgemässe Verbindung muss um für die vorgesehenen Zwecke brauchbar zu sein, in wasserfreier Form vorliegen. Bei der üblichen Synthese erhält man jedoch oft kristallwasserhaltige Produkte, die das Wasser auch beim Trocknen unter üblichen Bedingungen nicht verlieren. Überraschenderweise wurde gefunden, dass man nach der Trocknung unter Bedingungen, bei denen auch das Kristallwasser entfernt wird, eine Verbindung erhält, die sich gegenüber den kristallwasserhaltigen z.B. bei Färben von Thermoplasten, durch eine stark erhöhte Temperaturstabilität sowie durch bessere Licht- und Wetterechtheit auszeichnet.
- 22,1 Teile 1-Amino-3-chlor-4-methylbenzol-6-sulfonsäure werden in 200 Teilen Wasser und 8 Teilen Natronlauge (50%ig) gelöst und mit 35 Volumenteilen konzentrierter Salzsäure gefällt. Man kühlt mit Eis auf 0 bis 5°C und diazotiert durch Zugabe von 31 Volumenteilen einer 23%igen Natriumnitritlösung.
- Danach löst man 32,3 Teile 1-(2',5'-Dichlor-4'-sulfophenyl)-3-methyl-5-pyrazolon in 200 Teilen Wasser und 7 Teilen Natronlauge (50%ig) und lässt bei 20 bis 25°C die Diazoniumsalzsuspension zulaufen. Durch weitere Zugabe von ungefähr 12 Teilen NaOH gleicher Konzentration wird ein pH-Wert von 5 eingestellt. Nach beendeter Kupplung erwärmt man auf 80°C und versetzt mit 40 Teilen Calciumchlorid, und rührt noch eine Stunde bei dieser Temperatur nach. Dann wird filtriert, mit Wasser gewaschen und bei 120°C getrocknet. Man erhält 60 g des gelben Farblacks der Formel:
- 0,05 Teile des gemäss dem Beispiel erhaltenen Farbstoffes werden in einem Trommelmischer mit 100 Teilen Polyethylenpulver (Hochdruckware) trocken gemischt. Das Gemisch wird auf einer Schneckenpresse bei einer Zylindertemperatur von 160 bis 200°C geschmolzen und homogenisiert. Die gefärbte plastische Masse wird durch Heissabschlagen am Düsenkopf oder durch Ausziehen von Fäden unter Kühlung granuliert. Das so erhaltene Granulat wird anschliessend in einer Spritzgussvorrichtung bei 200°C zu Formkörpern verspritzt oder auf Pressen zu beliebigen Körpern gepresst. Man erhält gelbe Presslinge mit ausgezeichneter Lichtechtheit.
- 0,05 Teile des gemäss dem Beispiel erhaltenen Farbstoffes werden in einem Trommelmischer mit 100 Teilen gemahlenem Polystyrol-Blockpolymerisat trocken gemischt. Das Gemisch wird auf einer Schneckenpresse bei einer Zylindertemperatur von 200 bis 250°C geschmolzen und homogenisiert. Die gefärbte plastische Masse wird durch Heissabschlagen am Düsenkopf oder durch Ausziehen von Fäden unter Kühlung granuliert. Das so erhaltene Granulat wird anschliessend in einer Spritzgussvorrichtung bei 200 bis 250°C zu Formkörpern verspritzt oder auf Pressen zu beliebigen Körpern gepresst. Man erhält gelbe Spritzlinge mit ausgezeichneter Thermostabilität.
- Anstelle von Polystyrol-Blockpolymerisat kann auch ein Polystyrol-Emulsionspolymerisat oder Suspensionspolymerisat bzw. Mischpolymerisat mit Butadien und Acrylnitril oder Acrylestern verwendet werden.
Claims (2)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3318073 | 1983-05-18 | ||
DE19833318073 DE3318073A1 (de) | 1983-05-18 | 1983-05-18 | Pyrazolonazofarbstoffe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0126405A1 EP0126405A1 (de) | 1984-11-28 |
EP0126405B1 true EP0126405B1 (de) | 1987-03-11 |
Family
ID=6199292
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84105471A Expired EP0126405B1 (de) | 1983-05-18 | 1984-05-14 | Pyrazolonazofarbstoffe |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0126405B1 (de) |
JP (1) | JPS59219368A (de) |
DE (2) | DE3318073A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3543512A1 (de) * | 1985-12-10 | 1987-06-11 | Bayer Ag | Azofarblacke |
CH670095A5 (de) * | 1986-04-28 | 1989-05-12 | Sandoz Ag | |
DE3789185D1 (de) * | 1986-10-03 | 1994-04-07 | Ciba Geigy | Mischkristalle aus verlackten Azofarbstoffen. |
DE3833226A1 (de) * | 1988-09-30 | 1990-04-05 | Hoechst Ag | Monoazopigment, verfahren zu seiner herstellung und seine verwendung |
GB9201951D0 (en) * | 1992-01-30 | 1992-03-18 | Ici Plc | Pigment |
FR2727410B1 (fr) * | 1994-11-25 | 1996-12-20 | Synthelabo | Chlorures de sulfonyles, leur preparation et leur utilisation comme intermediaires de synthese |
US5669967A (en) * | 1996-05-30 | 1997-09-23 | Engelhard Corporation | Pigment compositions |
US5997628A (en) * | 1998-06-08 | 1999-12-07 | Engelhard Corporation | Heat stable laked monoazo pigment compositions |
GB9923233D0 (en) | 1999-10-04 | 1999-12-08 | Ciba Sc Holding Ag | Sorbitan ester treated pigments for plastics applications |
US6294012B1 (en) | 1999-11-15 | 2001-09-25 | Engelhard Corporation | High strength monoazo yellow pigment |
DE10032315A1 (de) * | 2000-07-04 | 2002-01-17 | Clariant Gmbh | Neue Kristallmodifikationen von C.I. Pigment Yellow 191 und Verfahren zu ihrer Herstellung |
DE10062130A1 (de) | 2000-12-13 | 2002-06-27 | Basf Ag | Transparente grünstichige gelbe Pyraziolonazopigmente |
US6913640B2 (en) | 2001-01-24 | 2005-07-05 | Ciba Specialty Chemicals | Single-phase mixed crystals of laked monoazo dyes |
DE102007036126B4 (de) | 2007-08-01 | 2019-01-24 | Clariant International Ltd. | Neues Phenylpyrazolon-Farbmittel, Verfahren zu seiner Herstellung und seine Verwendung |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1020425B (de) * | 1956-03-31 | 1957-12-05 | Hoechst Ag | Verfahren zur Herstellung von metallhaltigen Disazofarbstoffen |
GB874220A (en) * | 1959-02-21 | 1961-08-02 | Bayer Ag | New pigment monoazo dyestuff lakes |
FR2087733A5 (de) * | 1970-05-29 | 1971-12-31 | Kodak Pathe | |
JPS5067841A (de) * | 1973-10-19 | 1975-06-06 | ||
DE2503791C2 (de) * | 1975-01-30 | 1977-03-10 | Hoechst Ag | Verfahren zur herstellung von verlackten azofarbstoffen |
US4045425A (en) * | 1976-02-19 | 1977-08-30 | E. I. Du Pont De Nemours And Company | Crystalline azopyrazolone acid dye |
DE2616981C2 (de) * | 1976-04-17 | 1983-12-08 | Basf Ag, 6700 Ludwigshafen | Pyrazolon-Azofarbstoffe ihre Herstellung und Verwendung |
JPS5337732A (en) * | 1976-09-20 | 1978-04-07 | Nippon Kayaku Co Ltd | Monoazo lake, its preparation and coloring therewith |
DE3133404A1 (de) * | 1981-08-24 | 1983-03-10 | Basf Ag, 6700 Ludwigshafen | Sulfonsaeuregruppenhaltige verlackte azofarbstoffe |
-
1983
- 1983-05-18 DE DE19833318073 patent/DE3318073A1/de not_active Withdrawn
-
1984
- 1984-05-14 DE DE8484105471T patent/DE3462606D1/de not_active Expired
- 1984-05-14 EP EP84105471A patent/EP0126405B1/de not_active Expired
- 1984-05-17 JP JP59097661A patent/JPS59219368A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0126405A1 (de) | 1984-11-28 |
DE3462606D1 (de) | 1987-04-16 |
JPS59219368A (ja) | 1984-12-10 |
DE3318073A1 (de) | 1984-11-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0073972B1 (de) | Sulfonsäuregruppenhaltiger verlackter Azofarbstoff | |
EP0126405B1 (de) | Pyrazolonazofarbstoffe | |
EP0225553B1 (de) | Azofarblacke | |
DE2616981C2 (de) | Pyrazolon-Azofarbstoffe ihre Herstellung und Verwendung | |
DE69711388T2 (de) | Pigmentzusammensetzungen | |
EP0361431B1 (de) | Monoazopigment, Verfahren zu seiner Herstellung und seine Verwendung | |
DE2834028C2 (de) | Deckende Calziumfarblacke mit hoher Purtonbrillanz und verbesserter Lichtechtheit, Verfahren zu deren Herstellung und deren Verwendung | |
WO2016116244A1 (de) | Gelbe methinfarbstoffe | |
EP3470467B1 (de) | Methinfarbstoffe zum färben von kunststoffen | |
EP0263074A2 (de) | Mischkristalle aus verlackten Azofarbstoffen | |
EP0241413A2 (de) | Neue Aminsalze von Azoverbindungen | |
EP3508536B1 (de) | Methinfarbstoffe zum massefärben von synthetischen polyamiden | |
DE69716927T2 (de) | Verlackter azofarbstoff | |
DE69722423T2 (de) | Wärmestabile, rote, mit strontium verlackte monoazopigmente | |
EP0168343A2 (de) | Neue Metallkomplexe, Verfahren zu ihrer Herstellung ihre Verwendung zum Färben von hochmolekularem organischem Material | |
EP0010669B1 (de) | Verfahren zum Färben thermoplastischen Kunststoffs und Pigment- oder Farbkonzentrate für dieses Verfahren | |
EP0169167A2 (de) | Verfahren zum Färben von hochmolekularem organischem Material und neue Metallkomplexe | |
EP3470468A1 (de) | Methinfarbstoffe | |
DE2139690A1 (de) | Polychlorperylentetracarbonsaeurediimide | |
CA1249265A (en) | Metal complexes and use thereof | |
DE3209424C2 (de) | ||
DE2233871A1 (de) | Azofarbstoffe mit einem oxdiazolylrest | |
DE2441924C3 (de) | Disazopigmentfarbstoffe | |
DE1543623C3 (de) | Verfahren zur Herstellung von Natriumsalzen von 3-Cyan-1-aryltriazenen | |
DE2451782C3 (de) | Perylen^&lO-tetracarbonsäurediimidfarbstoffe und ihre Verwendung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): CH DE FR GB IT LI |
|
17P | Request for examination filed |
Effective date: 19850515 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): CH DE FR GB IT LI |
|
ITF | It: translation for a ep patent filed | ||
REF | Corresponds to: |
Ref document number: 3462606 Country of ref document: DE Date of ref document: 19870416 |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
ITTA | It: last paid annual fee | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19980424 Year of fee payment: 15 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19980501 Year of fee payment: 15 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19980505 Year of fee payment: 15 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19980526 Year of fee payment: 15 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990514 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF THE APPLICANT RENOUNCES Effective date: 19990528 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990531 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990531 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19990514 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000131 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |